How to set an icon at the end of Toolbar

If there's anyone that still confused (including me before), somehow android studio doesn't provide autocomplete for the android:layout_gravity under the toolbar tag. So to make it works, just copy and paste android:layout_gravity="end" to the ImageView/layout.

Try adding this to your ImageView:

android:layout_gravity="end"

If you want something like this (icon 2)

You do not need add icon to the layout manually, you should to implement menu.xml

1. Create menu.xml like this

   <?xml version="1.0" encoding="utf-8"?>
   <menu xmlns:android="http://schemas.android.com/apk/res/android">
       <item android:id="@+id/new_activity"
           android:icon="@drawable/ic_custom_icon"
           android:title="@string/new_activity" />
   </menu>
   

2. Add it in your activity/fragment to the actionbar/toolbar by

   @Override
   public boolean onCreateOptionsMenu(Menu menu) {
      MenuInflater inflater = getMenuInflater();
      inflater.inflate(R.menu.menu, menu);
      return true;
   }
   

3. Handle menu items events

Toolbar with menus works fine, it sets icons to the right of toolbar automatically